Skip to main content
PMC home page
Journal of Bacteriology logoLink to Journal of Bacteriology
. 1988 Nov;170(11):5389–5391. doi: 10.1128/jb.170.11.5389-5391.1988

Distinct mutation sites in prlA suppressor mutant strains of Escherichia coli respond either to suppression of signal peptide mutations or to blockage of staphylokinase processing.

T Sako 1, T Iino 1
PMCID: PMC211621  PMID: 2846517

Abstract

We have cloned and sequenced some prlA mutant alleles of the Escherichia coli secY gene. From the mutation sites determined, it is strongly suggested that distinct regions in the SecY (PrlA) protein are involved in the recognition of different structural features of a signal peptide as it functions.

Full text

PDF
5390

Images in this article

5390Image
on p.5390
5390Image
on p.5390

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Akiyama Y., Ito K. The SecY membrane component of the bacterial protein export machinery: analysis by new electrophoretic methods for integral membrane proteins. EMBO J. 1985 Dec 1;4(12):3351–3356. doi: 10.1002/j.1460-2075.1985.tb04088.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Akiyama Y., Ito K. Topology analysis of the SecY protein, an integral membrane protein involved in protein export in Escherichia coli. EMBO J. 1987 Nov;6(11):3465–3470. doi: 10.1002/j.1460-2075.1987.tb02670.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Bankaitis V. A., Bassford P. J., Jr Proper interaction between at least two components is required for efficient export of proteins to the Escherichia coli cell envelope. J Bacteriol. 1985 Jan;161(1):169–178. doi: 10.1128/jb.161.1.169-178.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Bankaitis V. A., Rasmussen B. A., Bassford P. J., Jr Intragenic suppressor mutations that restore export of maltose binding protein with a truncated signal peptide. Cell. 1984 May;37(1):243–252. doi: 10.1016/0092-8674(84)90320-9. [DOI] [PubMed] [Google Scholar]
  5. Cerretti D. P., Dean D., Davis G. R., Bedwell D. M., Nomura M. The spc ribosomal protein operon of Escherichia coli: sequence and cotranscription of the ribosomal protein genes and a protein export gene. Nucleic Acids Res. 1983 May 11;11(9):2599–2616. doi: 10.1093/nar/11.9.2599. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Emr S. D., Bassford P. J., Jr Localization and processing of outer membrane and periplasmic proteins in Escherichia coli strains harboring export-specific suppressor mutations. J Biol Chem. 1982 May 25;257(10):5852–5860. [PubMed] [Google Scholar]
  7. Emr S. D., Hanley-Way S., Silhavy T. J. Suppressor mutations that restore export of a protein with a defective signal sequence. Cell. 1981 Jan;23(1):79–88. doi: 10.1016/0092-8674(81)90272-5. [DOI] [PubMed] [Google Scholar]
  8. Emr S. D., Silhavy T. J. Importance of secondary structure in the signal sequence for protein secretion. Proc Natl Acad Sci U S A. 1983 Aug;80(15):4599–4603. doi: 10.1073/pnas.80.15.4599. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Gardel C., Benson S., Hunt J., Michaelis S., Beckwith J. secD, a new gene involved in protein export in Escherichia coli. J Bacteriol. 1987 Mar;169(3):1286–1290. doi: 10.1128/jb.169.3.1286-1290.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Iino T., Takahashi M., Sako T. Role of amino-terminal positive charge on signal peptide in staphylokinase export across the cytoplasmic membrane of Escherichia coli. J Biol Chem. 1987 May 25;262(15):7412–7417. [PubMed] [Google Scholar]
  11. Ito K., Bassford P. J., Jr, Beckwith J. Protein localization in E. coli: is there a common step in the secretion of periplasmic and outer-membrane proteins? Cell. 1981 Jun;24(3):707–717. doi: 10.1016/0092-8674(81)90097-0. [DOI] [PubMed] [Google Scholar]
  12. Kiino D. R., Silhavy T. J. Mutation prlF1 relieves the lethality associated with export of beta-galactosidase hybrid proteins in Escherichia coli. J Bacteriol. 1984 Jun;158(3):878–883. doi: 10.1128/jb.158.3.878-883.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Kumamoto C. A., Beckwith J. Evidence for specificity at an early step in protein export in Escherichia coli. J Bacteriol. 1985 Jul;163(1):267–274. doi: 10.1128/jb.163.1.267-274.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Kyte J., Doolittle R. F. A simple method for displaying the hydropathic character of a protein. J Mol Biol. 1982 May 5;157(1):105–132. doi: 10.1016/0022-2836(82)90515-0. [DOI] [PubMed] [Google Scholar]
  15. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  16. Oliver D. B., Beckwith J. E. coli mutant pleiotropically defective in the export of secreted proteins. Cell. 1981 Sep;25(3):765–772. doi: 10.1016/0092-8674(81)90184-7. [DOI] [PubMed] [Google Scholar]
  17. Riggs P. D., Derman A. I., Beckwith J. A mutation affecting the regulation of a secA-lacZ fusion defines a new sec gene. Genetics. 1988 Apr;118(4):571–579. doi: 10.1093/genetics/118.4.571. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Sako T. Immediate entrance to the export pathway after synthesis as a requirement for export of the sak gene product in Escherichia coli. J Bacteriol. 1986 Sep;167(3):850–854. doi: 10.1128/jb.167.3.850-854.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Sako T., Sawaki S., Sakurai T., Ito S., Yoshizawa Y., Kondo I. Cloning and expression of the staphylokinase gene of Staphylococcus aureus in Escherichia coli. Mol Gen Genet. 1983;190(2):271–277. doi: 10.1007/BF00330650. [DOI] [PubMed] [Google Scholar]
  20. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Shiba K., Ito K., Yura T., Cerretti D. P. A defined mutation in the protein export gene within the spc ribosomal protein operon of Escherichia coli: isolation and characterization of a new temperature-sensitive secY mutant. EMBO J. 1984 Mar;3(3):631–635. doi: 10.1002/j.1460-2075.1984.tb01859.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  23. Stader J., Benson S. A., Silhavy T. J. Kinetic analysis of lamB mutants suggests the signal sequence plays multiple roles in protein export. J Biol Chem. 1986 Nov 15;261(32):15075–15080. [PubMed] [Google Scholar]
  24. Trun N. J., Silhavy T. J. Characterization and in vivo cloning of prlC, a suppressor of signal sequence mutations in Escherichia coli K12. Genetics. 1987 Aug;116(4):513–521. doi: 10.1093/genetics/116.4.513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Vieira J., Messing J. Production of single-stranded plasmid DNA. Methods Enzymol. 1987;153:3–11. doi: 10.1016/0076-6879(87)53044-0. [DOI] [PubMed] [Google Scholar]

Articles from Journal of Bacteriology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES